Description
E18-D80NK Adjustable Infrared Proximity Sensor
The E18-D80NK is an adjustable infrared proximity sensor for detecting objects in front of the sensor. The listing states a 3–80 cm adjustable detection range and describes diffuse reflection: emitted infrared light reflects from an object and is detected by a phototransistor.
Specifications listed
- Operating voltage: 5V DC
- Current consumption: 25–100mA
- Sensing type: diffuse reflection
- Detection range: 3–80 cm, adjustable with the potentiometer
- Output: NPN open collector, as listed
- Response time: less than 2ms
- Operating temperature: −25°C to +55°C
- Cable length: 45 cm
Output behavior stated in the listing
The listing describes a HIGH output when no obstacle is detected and LOW when an obstacle is present within range. Confirm the actual output behavior and wiring of the supplied unit. An open-collector output may require a suitable pull-up; check that the output voltage is safe for the controller input.
Wiring
- Brown (VCC): connect to a suitable 5V supply
- Blue (GND): connect to the supply ground and controller ground
- Black (digital output): connect to a compatible digital input using the required pull-up/logic interface
Adjusting the detection range
Use the potentiometer on the rear of the sensor to adjust its detection distance. The source says clockwise increases the range and counterclockwise decreases it. Test and calibrate with the actual target and installation conditions.
Applications
- Robot obstacle avoidance
- Object detection on automation or production lines
- Parking-assistance prototypes
- DIY object-presence detection projects
Use considerations
The source says the sensor is designed to reduce ambient-light interference, but recommends testing under real operating conditions. Detection can vary with target material, color, angle and ambient light. Keep the sensor within its voltage and current limits.
